分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) >
Squaliformes (Sleeper and dogfish sharks) >
Squalidae (Dogfish sharks)
Etymology: Squalus: Genus name from Latin 'squalus' meaning shark (Ref. 6885, 27436); albicaudus: Name from Latin 'albus' for white and 'cauda' for tail, referring to the white ventral lobe of its caudal fin.
环境：氛围 / 气候带 / 深度上下限 / 分布范围
生态学
海洋 底中水层性; 深度上下限 195 - 421 m (Ref. 109601).
分布
领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
Southwest Atlantic: Brazil (between NE and SE Brazilian coast; often reported between the states of Bahia and Espírito Santo; distribution to southern Brazil is unknown).
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 52.5 cm TL 雄鱼/尚未辨别雌雄; (Ref. 109601); 59.0 cm TL (female)
简单描述
检索表 | 型态特徵 | 形态测量图
脊椎骨: 110 - 116. This species can be distinguished from its congeners by the following set of characters: caudal fin with a mostly white ventral caudal lobe, its dorsal margin white at midline, and postventral margins broadly white; posterior margin of pectoral-fin broadly white; first dorsal fin with anterior margin also conspicuously white on its anterior half; differs from all species of the S. mitsukurii group with its short snout (vs. large), pectoral-fin free rear tips pointed (vs. rounded), dermal denticles lanceolate and unicuspid (vs. rhomboid and tricuspid); differs from S. cubensis by having a snout strongly pointed (vs. somewhat rounded), second dorsal-fin spine not reaching second dorsal-fin apex (vs. spine reaching second dorsal-fin apex), first dorsal fin with dark apex, but not as a black blotch (vs. distinct black blotch on both dorsal fins), pectoral fins with posterior margin broadly white (vs. narrowly white), in external morphometrics (Squalus albicaudus has a shorter first dorsal fin, anterior margin length 10.9%, 9.7%-11.2% TL vs. 11.6%, 11.6%-12.7% TL, shorter second dorsal fin, anterior margin length 9.2%, 8.8%-10.8% TL vs. 12.3%, 11.2%-11.6% TL, inner margin length 5.0%, 4.1%-5.2% TL vs. 5.6%, 5.5%-6.0% TL, more slender second dorsal-fin spine, width at base 0.9%, 0.6%-0.9% TL vs. 1.0%, 1.0%-1.2%, and clasper much more elongated, inner margin length 7.1%, 6.9%-7.7% TL vs. 8.0%, 3.3%-3.8% TL (Ref. 109601).
Body shape (shape guide): elongated; Cross section: angular.
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Viana, S.T.d.F., M.R. De Carvalho and U.L. Gomes, 2016. Taxonomy and morphology of species of the genus Squalus Linnaeus, 1758 from the Southwestern Atlantic Ocean (Chondrichthyes: Squaliformes: Squalidae). Zootaxa 4133(1):1-89. (Ref. 109601)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
人类利用
渔业: 潜在的兴趣
工具
特别资料
下载 XML
网络资源
基于模型的估算
系统发育多样性指数 (参考文献
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00347 (0.00163 - 0.00737), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
营养阶层 (参考文献
69278): 4.2 ±0.3 se; based on size and trophs of closest relatives
回复力 (参考文献
120179): 低的, 最小族群倍增时间4.5 - 14 年 (Preliminary K or Fecundity.).
渔业脆弱性 (Ref.
59153): Moderate vulnerability (44 of 100).
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